Transfer roundup

The match against 1899 Hoffenheim was his final farewell to Werder Bremen. German international centre-back Per Mertesacker (right) opted to leave the Weser behind as he moves to London to join Arsenal FC. The defender made a total of 227 Bundesliga appearances with Hannover 96 and Werder.Simon Kjaer has returned to Italy after an unsuccessful spell with Wolfsburg. Felix Magath has allowed the Danish centre-back to join AS Roma on loan. The 22-year-old made 35 starts for VfL Wolfsburg notching one goal. Mohamadou Idrissou (left) was the last player out of the door with the Cameroon international joining relegated side Eintracht Frankfurt to lead their attacking line. He brings with him a wealth of experience with 139 Bundesliga appearances to his name as well as 77 Bundesliga 2 matches.